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Letters Patent No. 101,287 dated March 29, 1870.

FEED-WATER HEATER POR LOCOMOTIVES.

The Schedule referred to in these Letters Patent and making part of thesame.

IIb-all persons to lwhom these presents ymay come:

Be it known that I, ISRAEL PUTNAM MAGooN, of St. J ohnsbnry, of thecounty of Caledonia, ofthe State of Vermont, have made a new and usefulinvention or AImprovement in Locomotive Steam-Engines; and do herebydeclare the same to be fully described in the following specificationand represented in the accompanyin g drawings, of which- Figurcs l and 2are vertical sections of the smokebox and chimney of a locomotive enginewith my invention applied thereto.

Figure is a top view of the saddle at the bottom of the chimney. 4

This saddle A, instead of4 being formed in the ordinary manner, viz.,with a at horizontal bottom, has two semicircular depressions orcavities, a a, arranged on opposite sides of the steam-chimney B, whichgoes `through and is led'upward from the saddle and opens ont ofthesmoke-arch or box C.

Thebottoms b b of these cavities are inclined in op posite directions,and there is an opening, e, made through the side of the steam-chimney,so as to lead ii'om each cavity a into it.

The exhaustfpipe is shown at D, and the smoke or steam-chimney at E. Thelatter rests directly on the saddle and is arranged concentrically withthe steamchimney. l

The said steam-chimney B is surmouuted by a deiiecting-bonnet, F, whichserves to throw or deflect downward into a hollow conical frustum, G,open both at top and at bottom, which encompasses the steamchimney, andis arranged in the smoke-chimney, in manner as represented, the steamand smoke which may escape from the top of the steam-chimney.

Withiu'the said frustum G is a helical coil of pipe,

` H, Whose ends open through the lower' part of the smoke-chimney.

One terminus of the coil is to communicate with the boiler, and theother with the force-pump of the engine, the same being so as to causethe water from the tank, in its passage to the boiler, to be heated bythe coil exposed within the frustum G to the. smoke and steam which maybe thrown therein.

There is a space, s, around the coil and between it and lthe frustum G,the same heilig to enable the smoke and the waste steam defiected intothe frustum to freely act on the outer surface of the coil.

The steam driven into the exhausopipe passes with the smoke directlyinto the steam-chimney, and striking the deiiect-or at its top, will bedeiiected downward into the frustnm G and against the coil and out ofthe lower end of the -i`rustum G, the smoke and steam will rush into andup through the smoke-chixnney or space aroundl the frustum G, and thencethrough the wire netting or cap I ofthe top of the said chimney.

Any sparks or cinders which may fall down upon the saddle, or intoeither of the. cavities a a thereof, will be drawn out of the cavity andthrough its escapei hole c, the position ofthe said escape-holes beingsuch as to prevent the steam from being driven through them while.passing from the exhaust-pipe into the chimney or flue B.

The cinders which may escape through lthe openings c c will fall intothe smoke-box or finally be consumed.

By means of the internal frustum G, arranged and combined with the outeror smoke-chimney, the steam4 chimney, the deiiector, and the coil, suchcoil will be heated to bet-ter advantage than it would be were there nosuch internal frustum about it and in the main chimney.

I therefore claim my invention the arrangement and combination of theinternal 'rustum G with the steam-chimney or pipe B, the deflector F,the heat-- ing-coil H, and the main or smoke-chimney E.

I. P. MAGOON.

Witnesses:

R. H. EDDY, S. N. PIPER.

